Error during retrieve from Sage 300 to Sales Analysis

SOLVED

During an end of month retrieve into SA the client is getting the following error message:

[Microsoft][SQL Server Native Client 11.0][SQL Server] Cannot insert duplicate key row in object 'dbo.UXARINVHO' with unique index

'UXARINVHO_idx0'.  The duplicate key value is (6, 1, SALESMAN   )

What's wrong?  What do I need to do to fix?

Any and All Advice Appreciated,

Dana